Rare site of papillary carcinoma

Papillary carcinoma of the thyroglossal cyst is a rare disease found in a 21 year-old female patient. Histopathological examination of a completely excised thyroglossal cyst established the diagnosis. Clinically, no differentiation between a benign cyst and malignancy could be made. Neck ultrasonography demonstrates a solid-cystic mass at the midline of the neck and may give the possibility of malignant changes in a thyroglossal cyst and may help in the preoperative diagnosis. Complete excision of the cyst with its tract and a central portion of the hyoid bone is usually sufficient. Long term follow up of the patient is recommended